1980827471 has 16 divisors (see below), whose sum is σ = 2398144320. Its totient is φ = 1597194240.

The previous prime is 1980827467. The next prime is 1980827477. The reversal of 1980827471 is 1747280891.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1980827471 - 2² = 1980827467 is a prime.

It is a super-3 number, since 3×1980827471³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980827477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459695 + ... + 463983.

It is an arithmetic number, because the mean of its divisors is an integer number (149884020).

Almost surely, 2^1980827471 is an apocalyptic number.

1980827471 is a deficient number, since it is larger than the sum of its proper divisors (417316849).

1980827471 is a wasteful number, since it uses less digits than its factorization.

1980827471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8194.

The product of its (nonzero) digits is 225792, while the sum is 47.

The square root of 1980827471 is about 44506.4879652394. The cubic root of 1980827471 is about 1255.8821374300.

The spelling of 1980827471 in words is "one billion, nine hundred eighty million, eight hundred twenty-seven thousand, four hundred seventy-one".